Effects of preparation and structure of cerium-zirconium mixed oxides on diesel soot catalytic combustion

2012 ◽  
Vol 413-414 ◽  
pp. 292-300 ◽  
Author(s):  
Claudinei F. Oliveira ◽  
Fillipe A.C. Garcia ◽  
Daniel R. Araújo ◽  
Julio L. Macedo ◽  
Sílvia C.L. Dias ◽  
...  
Keyword(s):  
Catalytic Combustion ◽  
Mixed Oxides ◽  
Diesel Soot ◽  
Soot Catalytic Combustion

On the effect of La–Cr–O– phase composition on diesel soot catalytic combustion

2007 ◽  
Vol 8 (12) ◽  
pp. 2257-2262 ◽  
Author(s):  
S. Ifrah ◽  
A. Kaddouri ◽  
P. Gelin ◽  
G. Bergeret
Keyword(s):  
Phase Composition ◽  
Catalytic Combustion ◽  
Diesel Soot ◽  
Soot Catalytic Combustion ◽  
O Phase

Influence of MnOx Loading on Activity of MnOx/Ce0.7Zr0.2La0.1O2-Al2O3 Catalyst for Catalytic Combustion of Diesel Soot

2013 ◽  
Vol 33 (12) ◽  
pp. 1965-1973
Author(s):  
Yi ZHU ◽  
Hao PAN ◽  
Shanhu CHEN ◽  
Shidan WANG ◽  
Ming ZHAO ◽  
...  
Keyword(s):  
Catalytic Combustion ◽  
Diesel Soot

Effect of the presence of n-hexane on the catalytic combustion of chlororganics over ceria–zirconia mixed oxides

2005 ◽  
Vol 107-108 ◽  
pp. 933-941 ◽  
Author(s):  
José I. Gutiérrez-Ortiz ◽  
Beatriz de Rivas ◽  
Rubén López-Fonseca ◽  
Juan R. González-Velasco
Keyword(s):  
Catalytic Combustion ◽  
Mixed Oxides

A mechanistic study of the sulfur tolerance of Cu–V mixed oxides in toluene catalytic combustion

2015 ◽  
Vol 116 (2) ◽  
pp. 467-478 ◽  
Author(s):  
Xinhua Zhang ◽  
Zhiying Pei ◽  
Tingting Wu ◽  
Hanfeng Lu ◽  
Haifeng Huang
Keyword(s):  
Catalytic Combustion ◽  
Mixed Oxides ◽  
Mechanistic Study ◽  
Sulfur Tolerance

Catalytic Combustion of Diesel Soot on Nanocrystalline CeO2-based Solid Solutions

2007 ◽  
Vol 23 (08) ◽  
pp. 1275-1280 ◽  
Author(s):  
FANG Ping ◽  
◽  
◽  
LU Ji-Qing ◽  
JIA Ai-Ping ◽  
...  
Keyword(s):  
Solid Solutions ◽  
Catalytic Combustion ◽  
Diesel Soot

Structured hierarchical Mn–Co mixed oxides supported on silicalite-1 foam catalyst for catalytic combustion

2020 ◽  
Vol 28 (9) ◽  
pp. 2319-2327
Author(s):  
Yanan Guan ◽  
Hengyu Shen ◽  
Xing Guo ◽  
Boyang Mao ◽  
Zhenyuan Yang ◽  
...  
Keyword(s):  
Catalytic Combustion ◽  
Mixed Oxides

scholarly journals Bulk Versus Surface Modification of Alumina with Mn and Ce Based Oxides for CH4 Catalytic Combustion

Materials ◽  
2019 ◽  
Vol 12 (11) ◽  
pp. 1771 ◽  
Author(s):  
Stefan Neatu ◽  
Mihaela M. Trandafir ◽  
Adelina Stănoiu ◽  
Ovidiu G. Florea ◽  
Cristian E. Simion ◽  
...  
Keyword(s):  
Photoelectron Spectroscopy ◽  
Catalytic Combustion ◽  
Mixed Oxides ◽  
Sol Gel ◽  
Nitrogen Adsorption ◽  
X Ray Diffraction ◽  
X Ray ◽  
Temperature Programmed ◽  
Catalytic Combustion Of Methane ◽  
Adsorption Desorption

This study presents the synthesis and characterization of lanthanum-modified alumina supported cerium–manganese mixed oxides, which were prepared by three different methods (coprecipitation, impregnation and citrate-based sol-gel method) followed by calcination at 500 °C. The physicochemical properties of the synthesized materials were investigated by various characterization techniques, namely: nitrogen adsorption-desorption isotherms, X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), scanning electron microscopy (SEM) and H2–temperature programmed reduction (TPR). This experimental study demonstrated that the role of the catalytic surface is much more important than the bulk one. Indeed, the incipient impregnation of CeO2–MnOx catalyst, supported on an optimized amount of 4 wt.% La2O3–Al2O3, provided the best results of the catalytic combustion of methane on our catalytic micro-convertors. This is mainly due to: (i) the highest pore size dimensions according to the Brunauer-Emmett-Teller (BET) investigations, (ii) the highest amount of Mn4+ or/and Ce4+ on the surface as revealed by XPS, (iii) the presence of a mixed phase (Ce2MnO6) as shown by X-ray diffraction; and (iv) a higher reducibility of Mn4+ or/and Ce4+ species as displayed by H2–TPR and therefore more reactive oxygen species.

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